What is the global problem of the society?

I believe that in our time in society there are so many problems but the biggest is that everything is divided into classes of the poor and the rich. But I do not see a solution to this problem. But I know how to help poor people. In Africa, big problems with communications, it causes great communication problem and discomfort to residents and tourists who are going to rest there. Their lives are similar to one big terrible dream which obviously will not end soon. We must actively help these unfortunates and then the world will surely someday become better.